haskell-stack - '在路径 :' when running stack 上找不到名为 git 的可执行文件

Question

最近对我正在使用的存储库进行了更改后，我无法再构建。尝试运行任何 stack 命令时，例如 stack build，我收到以下错误:

$ stack build
Executable named git not found on path: ["/home/matthew/.stack/snapshots/x86_64-linux-nix/lts-8.23/8.0.2/bin","/nix/store/kikxl1m9gg1rh9yfi9ly9bkl39zdb6z7-postgresql-9.5.6/bin","/nix/store/xczvw3rlvr1ind8s88i7yx0vasl4gzxm-ghc-8.0.2/bin","/nix/store/sxngsdy5y53j8fkb912hbpgamb2bpv5q-patchelf-0.9/bin","/nix/store/9ngvanddznmrbf74cvy0pmrqimk3i56x-paxctl-0.9/bin","/nix/store/c07gdr6cm43j1cphadzafq185k711vx4-coreutils-8.26/bin","/nix/store/7pyzxi7k5l6nym972gi2nq8s9f9b2q0j-findutils-4.6.0/bin","/nix/store/gjwa02cchnj2r69dlqjixjmdn0ws7f1v-diffutils-3.5/bin","/nix/store/xk38vw7z7bfr8173vdwfrfamxqcaj7hi-gnused-4.4/bin","/nix/store/r6s8rcd28wsk4gwviyc93343bq5zwlqq-gnugrep-3.0/bin","/nix/store/bvs3nyfflhsb75cfn4ff2a6xnksdzx9f-gawk-4.1.3/bin","/nix/store/g3skr3kss1fqqzl5viyg178qbcp4cdky-gnutar-1.29/bin","/nix/store/kdx0bwfy20q6blpgpdb7psbn1y435r56-gzip-1.8/bin","/nix/store/f2fg211g8zy5k624dwx0g7z32cm148mr-bzip2-1.0.6.0.1-bin/bin","/nix/store/adjkz7lhgvl3y3hpkzfsmpk15f0jrnmr-gnumake-4.2.1/bin","/nix/store/lpk84rsbha199vm3k54498lqv2jswqj8-bash-4.4-p5/bin","/nix/store/1hdv6h68f7xy9k0lhxqf26saz0w0r39i-patch-2.7.5/bin","/nix/store/vkbh4xbgxvx3v9813d4kdwv8ggwrp038-xz-5.2.2-bin/bin"]

看来我的 stack 程序不知道我的 git 程序的正确路径。

如何将我的 git 路径指定到 stack？

我已确认我确实在以下路径安装了 git。

$ which git
/nix/var/nix/profiles/default/bin/git

我在 nixos 17.03 上。

---

编辑。

我确信 stack build 和 which git 命令在相同的环境中运行，因为它们在相同的 shell 中背靠背运行。

我的路径是

$ echo $PATH
/home/matthew/bin:/run/wrappers/bin:/run/wrappers/bin:/home/matthew/.nix-profile/bin:/home/matthew/.nix-profile/sbin:/home/matthew/.nix-profile/lib/kde4/libexec:/nix/var/nix/profiles/default/bin:/nix/var/nix/profiles/default/sbin:/nix/var/nix/profiles/default/lib/kde4/libexec:/run/current-system/sw/bin:/run/current-system/sw/sbin:/run/current-system/sw/lib/kde4/libexec

这表明 /nix/var/nix/profiles/default/bin 在路径中，其中包含 git。

---

此外，在我的 stack.yaml 文件中，当我设置 system-ghc: true 时，我收到“访问权限”错误，而不是“找不到名为 git 的可执行文件” ' 错误。

$ stack build
Warning: /home/matthew/backup/azara_work/platform/api/stack.yaml: Unrecognized field in NixOptsMonoid: system-ghc
Cloning into '/home/matthew/backup/azara_work/platform/api/.stack-work/downloaded/4FnxEtHDACVR'...
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Process exited with ExitFailure 128: /nix/var/nix/profiles/default/bin/git clone --recursive git@github.com:seanhess/rollbar-haskell.git /home/matthew/backup/azara_work/platform/api/.stack-work/downloaded/4FnxEtHDACVR

Answer 1

将此添加到 ~/.stack/config.yaml或本地 stack.yaml(如果它已经有一个 nix: block )

   nix:
    enable: true
    packages: [git]